[Trump20162020]

The Left now considers drinking milk to be racist, because non-whites tend to be lactose intolerant.

World map showing percentage of country's population that is lactose intolerant

[RegulatorCountry]

Wonder what’s different about Nigeria as far as lactose intolerance?

[vladimir998]

Bizarre. Why is Niger at only 13%?

[Verginius Rufus]

In humans and in other mammals, infants can digest their mother's milk because of an enzyme called lactase. In other species and in some humans, this enzyme shuts down after infancy.

"Lactase persistence" allows some people to digest milk after infancy.

A mutation known as 13910T occurred some time in the last 5 to 10,000 years and is now widely present in Europeans and South Asians--largely in areas where Indo-European or Uralic languages are spoken. Another mutation, 22018A, which also confers lactase persistence, is often found together with 13910T but sometimes by itself.

According to Jean Manco, Ancestral Journeys, these mutations arose and spread in the late Neolithic period (5,000 or so years ago) among dairy farmers--dairy farming produces 5 times as many calories per acre as raising cattle for slaughter, so it was advantageous for people to possess these mutations and to be able to consume dairy products as adults.

[Roman_War_Criminal]

LOL!
I was thinking exactly this but you got in a picture!

Excellent!

[Myrddin]

The Left now considers drinking milk to be racist, because non-whites tend to be lactose intolerant.

I'm lactose intolerant as a secondary consequence of gluten intolerance. Gluten damages the tips of the cilia in the small colon where lactase is manufactured. As long as I'm strict about keeping gluten out of my diet, I have working lactase. A gluten exposure can damage that lactase generating capability for up to 3 weeks. It's VERY common in people of Irish ancestry. Per Ancestry DNA (spit test), I'm genetically 44% Irish. My family history goes back 400 years into Wales. Lots of mixing across the Irish sea.

More important is the kind of casein in the milk. Most of North American cows are type A1. When cleaved, it produces Beta CasoMorphin. In persons with a leaky gut (gluten intolerant), the Beta CasoMorphin enters the blood and binds to sites in the brain causing a narcotic morphine symptom. Some persons develop an addiction to that morphine-like substance. The fix? Change the North America herds to genetically produce type A2 casein. The type2 cleaves differently when subjected to protease and doesn't create the Beta CasoMorphin fragment.

Not everyone is sensitive to binding Beta CasoMorphin. I know one unfortunate person who was gluten intolerant, lactose intolerant and loopy from Beta CasoMorphin. She had been confined to a hospital for years. A gluten free, casein free diet solved that for her. She is not only out of the hospital, she is off most of her medications and enjoying outdoor activities with her kids including riding 4-wheelers. She slipped up once with a small piece of cheese and the symptoms returned in minutes. No more slip-ups since then. A very happy camper. An Irish girl BTW...wife of a good friend.